Ammonium Polyphosphate APP China factory and supplier since 1998. The ammonium polyphosphate is a halogen-free flame retardants additive in coating ,MF(NH4PO3)n,CAS NO. 68333-79-9. we manufacture ammonium polyphosphate（n=1000,phase II),ammonium polyphosphate(n=200) two type.
Ammonium polyphosphate is a phosphorus-nitrogen type halogen-free flame retardant. Ammonium polyphosphate has high content of P and N flame retardant elements, ammonium polyphosphate has good thermal stability, almost neutral, non-toxic and low smoke. Ammonium polyphosphate can be used in engineering plastics, rubber conveyor belts, and intumescent fire retardant coatings.Ammonium polyphosphate has low water solubility, low processing viscosity, and high flame retardancy. When used in coatings, It has better rheology and stability. With the same addition amount, Taixing’s ammonium polyphosphate has a higher expansion rate and denser carbon layer, generate a longer fire protection time.
Polyphosphamide, as a type of polyphosphate containing nitrogen and phosphorus, has a unique and exquisite chemical structure. The synergistic presence of nitrogen and phosphorus elements in its molecules endows it with a series of outstanding characteristics. From the appearance, it appears as a delicate white powder with uniform texture and pure color, like white snow, giving people an intuitive impression of extremely high quality. This not only makes it visually satisfactory, but also provides inherent advantages for its uniform mixing with other materials, ensuring that it can fully play its role in various application scenarios.
The physical properties of polyphosphate amide are excellent. Its thermal stability is extremely high, usually starting to gradually decompose above 300 ℃. This characteristic allows it to remain stable in high temperature environments, whether in high-temperature injection molding of plastics or vulcanization processing of rubber, it will not decompose and fail due to high temperature, effectively ensuring the quality and performance of the final product. Meanwhile, its moisture absorption is extremely low, which means that in humid environments, polyphosphate amide will not easily absorb moisture, thus avoiding performance degradation caused by moisture and ensuring the reliability and stability of the material under various environmental conditions. In addition, the relative density of the APP is relatively small, which is conducive to uniform dispersion in different material systems, fully exerting its functions, and not excessively increasing the weight of the product. Its advantages are fully demonstrated in application scenarios with strict weight requirements.
In terms of chemical properties, polyphosphate amide has good chemical stability and is not easily reactive with common chemicals, which enables it to reliably function in various complex chemical environments. Whether in strong acidic and alkaline environments or corrosive special media, it can always maintain its structural integrity and performance stability. Moreover, it is an environmentally friendly material that is non-toxic and odorless. Throughout the entire production process and product lifecycle, it will not cause pollution to the environment, fully meeting the urgent global demand for green and sustainable materials.
Physical and Chemical Properties
| Item | APP I | APP II |
| Appearance | — | White Powder |
| P2O5 content % | ≥70.0 | ≥71.0 |
| Nitrogen content % | ≥14.0 | ≥14.0 |
| Mean polymerization Ñ | ≥200 | ≥1000 |
| Solubility（g/100mLH2O） | --- | ≤1.0 |
| Moisture ω/%, 130℃ | --- | ≤0.25 |
| PH value | 5.0-7.0 | 5.5-7.5 |
| Mean particle diameter (D50) µ m | --- | ≤20 |
Key Advantage
●Good thermal stability.
●Low viscosity, good dispersion.
●Low water solubility, good resistance to precipitation and migration.
●High degree of polymerization (n≥1000).
●High purity, narrow particle size distribution range.
Application:
●used to produce intumescent type fire-retardant coating.
●used in plastic, rubber, coating, adhesives, sealant, and fiber.
●applied in flame retarding treatment of wood, paper, and fibreboard.
●applied in epoxy resin or unsaturated polyester.
Packing and store:packing: 25kg/bag compound paper & plastic bag, or jumbo bag.
Store: storing in dry, ventilated and moistureproof conditions.
Polyphosphamide has a wide range of applications, especially in the field of flame retardancy, and can be regarded as a "flame retardant star". It is an efficient halogen-free flame retardant with unique advantages compared to other flame retardants. When added to polymer materials such as plastics, rubber, and fibers, polyphosphate amide undergoes thermal decomposition in the event of a fire. On the one hand, the non combustible gases such as ammonia produced by the decomposition can dilute the concentration of oxygen and combustible gases in the surrounding environment, thereby suppressing combustion reactions; On the other hand, a dense layer of carbonization will form, which acts as a sturdy shield that can isolate heat and oxygen, effectively preventing the spread of flames and buying valuable time for personnel evacuation and firefighting rescue. In the manufacturing of electronic and electrical enclosures, its application greatly improves the fire resistance of products and effectively reduces the risk of fires caused by electrical faults; In the production of insulation layers for wires and cables, it coats the cables with a reliable layer of fire-resistant "armor" to ensure the safety of power transmission; Adding polyphosphate amide to automotive interior materials provides an important guarantee for the safety of drivers and passengers during driving. In addition to the flame retardant field, in the coating industry, polyphosphate amide can be used as a key fire retardant additive for the production of expansion type fireproof coatings, widely used in building coatings, industrial protective coatings and other fields, to build strong fire barriers for buildings and industrial facilities, greatly improving their protection ability in fires. At the same time, in the agricultural field, polyphosphate amides with specific polymerization degrees can also be used as fertilizers, which have the characteristics of long-term slow-release and high utilization rate. They can stably supply phosphorus nutrients for a long time, promote crop rooting and tillering, and have a significant effect on increasing crop yield and efficiency. Moreover, it has chelating effects on metal elements such as zinc, manganese, iron, copper, magnesium, and calcium, which can convert insoluble trace elements into water-soluble nutrients for crop absorption. This not only facilitates the absorption and utilization of trace elements, but also effectively reduces the solidification of phosphorus in the soil. It can also adapt to various soils and crops with good safety.
